Wrench.



A. MARTIN.

WRENCH.

APPLICATION FILED JAN. 24, 1912.

1,030,907. Patented July 2, 1912.

v INVENTOR ATTORNEYS coLuMhm PLANonnAii c.

NITE sr ALBERT MARTIN, OF NEWARK, NEW JERSEY.'

WRENCH.

Specification of Letters Patent.

Patented July 2, 1912.

Application filed January 24, 1912. Serial No. 673,083.

To all whom it may concern:

Be it known that I, ALBERT MARTIN, a subject of the King of Hungary,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful. Improvements in renches, of which thefollowing is a specification, reference being had therein to theaccompanying drawing.

This invention relates to wrenches especially designed for use inconnection with an expansible spike forming the subject matter of acompanion application filed under even date. 1

My invention aims to provide a wrench that can be advantageously used inconnec tion with a locked by a spring pressed latch that has a portionthereof extending to the head of the pin or bolt, for instance, thattype of spike shown in my companion application, which has a springpressed latch for holding the pin or bolt head of the spike in a lockedposition.

My wrench is constructed whereby it can be easily placed over the pin orbolt head for rotating the same after a spring actuated rod of thewrench has been pressed to release the latch of the pin or bolt head.

The invention will be hereinafter specifically described and thenclaimed, and reference will now be had to the drawing, wherein Figure 1is a side elevation of the wrench, partly broken away and partly insection, showing it in connection with the spike of my companionapplication, Fig. 2 is an enlarged plan of a portion. of the wrench, andFig. 3 is a longitudinal sectional view of the same.

A wrench in accordance with this invention comprises a handle bar 1having the inner end thereof rectangular in cross section, off-set, asat 2, and provided with a rectangular head 8, said head having arectangular opening 4 formed therein with one of the walls of theopening concave, as at 5. The top of the bar, adjacent to the head 3, isprovided with a longitudinal recess 6 pin or bolt having a head that isintersecting a longitudinal bore 7 and slid ably mounted in said bore isa push rod 8 provided with a transverse pin 9 within the recess 6.Encircling the push rod 8, be tween the pin 9 and the outer end wall ofthe recess 6 is a coiled compression spring 10 that retains the push rodnormally in a retracted position.

The under side of the bar, at the off-set portion 2 thereof, is providedwith a longitudinal groove 11 having the inner end thereof incommunication with a slot 12 formed in the bar 1. Pivotally mountedwithin the groove 11 by is the cam-shaped end 14 of an angle actuatingmember 15 that extends out of the opening 12 and has the end thereofprovided with a button or head 16.

In practice, the opening 4 of the head 3 receives the head 17 of arotatable pin or bolt 18 forming part of an expansible spike 19. Afterthe wrench has been placed over the head 17, the button 16 is pressedand the actuating member 15 pushes upon the rod 8, causing the end ofsaid rod to engage the upper end 20 of a spring pressed latch 21,carried by the head 17 for locking the head relatively to the spike 19.After the spring pressed latch has been opened, the wrench can be swungto rotate the pin or bolt 18 and release or look the arms 22 of theexpansible spike 19, as occasion may require.

lVhen the button 16 is released, the spring 10 restores the push rod 8to its normal position and the wrench can be removed from the head 17 ofthe pin or bolt.

What I claim is:

A wrench comprising a handle bar including a forward portion, a rearport-ion and an intermediate portion, said rear and forward portionsextending in parallel planes, and said intermediate portion disposed atan inclination, said forward portion provided with an opening for thereception of the outer end of a holdfast device capable of being shiftedwhen the wrench is actuated, a spring pressed releasing rod arranged inthe forward portion and proa transverse pin 13 jecting from theintermediate portion and portion and terminating in said actuatingcapable of being shifted into said opening, member. 10 an actuatingmember pivoted in the inter- In testimony whereof I aflix my signaturemediate portion and having a depending in the presence of two Witnesses.5 free end capable of engaging said rod for ALBERT MARTIN.

shifting it, said actuating member extend- Witnesses: ing into said rearportion, and a horizon- ADOLPH TVEDY, tally disposed arm extending intosaid rear CHAS; BWIANEK.

m Copies of this patent may be obtained for five cents'each, byaddressing the Commissioner of Patents,

' Washington, .D. C.

